Internal-combustion engine.



C. F. LBMBKB.

INTERNAL GOMBUSTION ENGINE.

APPLICATION FILED JAMS. 1912.

f glfgg Patented Aug'. 1E., i914.

3 SHEBTS-SHEBT l..

G. F. LEMBKB.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED JAN. 13, 1.912..

Patented Aug. 1l, 191% 3 SHEETSSHEBT 2,

U) v l TW di C'. F. LEMBKE'.

INTERNAL GOMBUSTION ENGINE,

APFLIGATION FILED JAN.13.1912,

6 m a WM 1, m@ i ,Ow am m 3 Pa M. M fw d 9N. w/a w L @ya M l UNIT ED STATES a;

CHARLES r. LEMBKE, or VALPARAISO, INDIANA.

INTERNAL-COMBUSTION ENGINE.

1,106,720. Specification firmas raient. rammen aug. ii, raie. Application filed January 13, 19142. Serial No. 671,067.

To all'fwhom it may concern: Like letters refer to like parts throughout Be it known that I, CHARLES F. LEMBKE, the several views.

a citizen of the United States, residing at While vthe engine illustrated is of the four- Valparaiso, in the county of Porter and cylinder, four-cycle type, it is obvious that 60 State oflndiana, have invented certain new .my invention is not conned in its possible and useful Improvements in Internal-Comapplication to such engines alone.

bustion Engines, of which the following is In the drawings V indicates the cylinder,

la specification. W the piston, X the connecting rod, Y the My invention relates to improvements in crank shaft, and K the fly wheel mounted 65 1,0 internal combustion engines, in which an on the crank shaft. The rotating sleeve ,Y 30 etc., by means of an improved combination frusto-conical form in its upper portion, 'as

i 35 and particularly of the valve mechanism. *l exhaust and inlet ports, are provided in the improved rotating sleeve valve is provided valve A is rotatably supported in the valve in conjunction with improved accessory accasing B, which preferably is comprised of 4tuating mechanism and lubricating mechaouter and inner castings provided with an ni'sm .coacting therewith. annular bur U t0 secure a water tight joint. 7o The objects of. my invention, broadly The valve casing B is positioned concenspeaking, are to increase the efficiency-of trically to the cylinder and surrounded by an-internal combustion engine; to simplify the Water jacket H. the construction of the mechanism required In order to actuate the rotating sleeve for such an engine; to economize on the valve A, it is provided with the valve worm 75 number of parts required and combine them gear D, rigidly secured thereto, and rotated i advantageously; to provide novel and siinby the Worm gear O, mounted on the shaft ple means of lubrication, complete water N, which receives'its motion from the'stud jacketing, and a novel rotating sleeve valve gear Gr, which engages with the stud gear having suitable ports, in combination with G1', mounted on the crank shaft y. The e0 suitable inlet and exhaust passages, valve stud gears are ofl equal diameter. The casing, cylinder, piston, crank shaft, etc. worm gears O and D bear the proportion Myinvention has also for its object the of l to 4. My preferred form of rotating constant and synchronous lubrication of the sleeve valve A and valve casing B is' cylin- `rotating sleeve valve, cylinder, valve gears, dri'cal in its lower portion andt'apering in 85 of mechanism; and to combine with the roillustrated in the drawings. The rotating tating sleeve valve improved coacting sleeve valve A, except at its base, is com- -mechanism Aembodying novel vfeatures of pletely incased within'the valve casing B.

j :construction of the various devices described Ports C and C, which serve alternately as 90 The invention will vbe more fully exrotating sleeve valve and positioned diaplained hereinafter with reference to the metrically opposite to each other, as illusaccompanying drawings, forming a part of trated in'Fig. 5.

thisspeciication, and 1n which- To prevent the escape ofgas between the 95 40 Figure l is a side View of a four-cylinder rotating sleeve valve and valve casing, a engine embodying my invention, shown spring ring R is provided and positioned partly in section and partly in elevation. a short distance below the valve ports, be- `Fig.2 is atransverse vertical section through 'tween the inner surface of thev rotating one cylinder, on a'section line approxivalve and the adjacent surface of the valve 100 mately coinciding with the axes of the eX- casing, in a vgroove in the valve casing. To haust .passages and indicated by lineQ--Q on permit of lubrication of the spring ring R,

Fig. 3, and line 2-2 of Fig. l. Fig. 3 is a f orifices R1 are provided in the rotating valve horizontal sectional view of the exhaust and and positioned so as to admit oil to and inlet passages and water jacket. Fig. 4 is a p around the spring ring R. 105

detail vertical sectional view of one cylinder,y Constant lubrication of the rotating sleeve l showing the disposition.- o f inlet and exvalve is maintained by means of oil grooves haust as indicated ,by line 4-4 onFigfB. F arranged spirally about the valve from its Fig. 5 is "a top plan view of `the rotating Vbase to its-annular uppermost 'portion on sleeve valve. Figa 6 is a vertical section of both its external and internal surfaces. The 110 the rotating sleeve valve. .'Fig. 7 is a side l annular uppermost portion of the rotating elevation. of the rotating sleeve valve. sleeve valve isI formed so as to leave a small annular oil channel F1 between the upper 'end of the valve-and the valve casing.

To provide for a continuous supply of oil to the base of the rotating sleeve valve A, 5 an oil clipper X2 is Yuovided on the bearing v X1 of the connecting rod X, to splash oil from a crescent-shaped oil pan L provided for that purpose and positioned horizontally relative to the crank shaft, to the base of the rotating sleeve valve A,over the valve Worin gear D and worm. gear O, and into the cylinder V, as illustrated in Figs. l and 2. Suitable partitions divide the oil pan` into as many compartments as there are cylinders to the engine, but permit oil to flow from one compartment to another. For the purpose of conveying oil lto the oil pan L, troughs M are provided at each side of the crank case, as illustrated in' Fig. l.

y For the purpose of constantly supplying oil to the oil troughs M and thence to the oil pan L, from whence oil is splashed to the rotating valve, and for the further purpose of synchronously lubricating the crank shaft journal Y1 which is provided with an oil orifice Y2 and the journal N 1, which is provided with an oil orifice N2, to lubricate the upper shaft N, the fly wheel K, mounted on the crank shaft Y, is provided With ly Wheel oil-splashers K1 which splash oil from the oil. well P, contained in and formed'by the inclined base of the crankcase Q, to the journals Y1 and N1 and to the troughs VM. P1 indicates a suitableoil pipe vto the crank case Q.

To conduct the explosive fluid into the cylinder, ,oppositely-disposed inlet passages l are provided, leading throughthe,` valve casing. B to corresponding ports I1 in the 40 cylinder. To allow the burned gases to es.- Cape from the cylinderfollowing the explosion, oppositely-disposed exhaust passages E leading through the valve casing from corresponding exhaust ports E1 are provided in the cylinder. The exhaust passages and inlet passages are arranged in sets as illustrated in F ig. 3, and lead to oppositely-disposed exhaust and inlet ports. Y l

To maintain an even temperature in the engine, a water jacket H is provided, sur- 'rounding the valve casing and encircling the cylinder, cylinder head, inlet passages and exhaust passages, as illustrated in Figs. 'f1' and 2. S indicates the Water return pipe. T and U are burs to secure Water-tight joints.

In operation the crank shaft rotates the stud gear G1 which engages with and rotates the stud gear G, thus rotating the shaft N and the Worm gear O mounted on the shaft il?. The worm gear O engages with and rotates the valve Worm gear D, thus produo ing rotation of the rotating sleeve valve A to which it is rigidly secured. Obviously,-

the shaft N may be extended and provided with as many valve-actuating gears as there are rotating valves, depending on the number of cylinders in the engine. Oil is, conveyed to oil pan L through the troughs M, from the oil .Well P. Excess of oil overflows from one compartment to another in the oil pan, the partitions being of gradually decreasing height, and from the last compartment overflows into the oil well P at its, shallow end.

Oil splashers K1 splash oil to the journals Y1 and N1 and at the same time to the troughs M, thus supplying oil to the oil pan L. v j

With each return stroke of the piston W oil from ythe oil pan L is splashed by the oil clipper X2 on the connecting rod bearing X1 of the connecting rod X to the cylinder V, over the valve gear D and Worm gear O and about the base of the rotating sleeve valve A, whence it is eonveyedupward over the outer and inner surfaces of the rotating valve 'through the spirally-arranged `Voil grooves F and into the oil orifices R1 to the spring ring R.

The Worm gear O, engaging With the valve worm' gear D, causes the rotating sleeve valve A. to'rot-ate at quarter speed. In the course of the rotation of the rotating sleeve valve, its oppositely-disposed ports C engage over the opposite inlet passages I, leading to the cylinder inlet ports I1, to admit the explosive fuel into the cylinder With the downward stroke of the piston. The inlet passages are Vthen covered again as the valve 100 rotates. Vhen the explosion occursv theA pressure. of the exploded gases against the rotating sleeve valve A through the cylinder ports l1 and E1 lifts the rotating sleeve valve slightly Within the valve casing and makeslo gas-tight joints at the exhaust and inlet ports. y

As the rotating sleeve valve nears the completion of a half rotation, with the return stroke. of the piston following the explosion, 110 the burned gases are V.xpelled 4through the cylinder exhaust ports E1, over Which the opposite ports C in the rotating sleeve valve engage, coinciding with the exhaust passages E. The exhaust ports 1 1 are then covered 115 again by the rotating sleeve valve just before the rotation of the valve is completed and as the piston nears the end of the return stroke .following theexplosion.

l/Vhile the specific mechanism set forth 124 herein is the preferred embodiment of my invention, it is capable of various modifications in consti-notional details Without departing from the essential features of my invention, and

I therefore claim:

l, The combination of a ported, rotating vsleeve valve having spiral oil grooves eX- tending from ond to end, oil orifices peripherally disposed in the valve, a hollow 180 valve easing formed et :iii outer and sleeve-shaped valve easing rotatably supporting and enveloping the valve exceptat its base, a surrounding water jacket adja- Cent to the Walls of the valve miiing.J a spring ring positioned between the. valve and t valve easing eoiiii'cideiitly Witli the 'aforesaid oil orifices, an aiiiiiilar oil el'iaiiiiel at Vthe! end of the. Valve into which tlie spiral oil i grooves open, and oil-splashing o'ieeliaiiisiiiI substantially as set oi'tli. 2. n an internal combustion engine, the eoiiiliinatioi` of im oppositolti-ported. eyliii i dei', a piston 'tlieieiii,a ei'aiil shaft operai tiyelyeoiiiieeted with the pistou, acoiieeiii tieally-positioiied sleeve mire easing liavi ing mi outer :iiio "ier sli' il 'leere valve l eiriiraliig woor-ed from brise to iy :iriiiiiiar A l ,ar uppermost portion; rotatably Seated. oetwi the outer and inner Shells of the aforeiaid casingyinlet and exhaust igiaeeagee dentiy dispoeed ii'itii tiie 'eyliiid v waterjaeket surrounding the cylinder, iiilet 'i and exliaiist poso and waive easing.; aiid Separating the valve easing; and eyliiibx iid means for aoliiiig oil to tlie Valve mechanism., cjfliiider7 gearing; ete., ooi '1 tiaily as described,

31, rlflie eoiiibiiatioii el? a E'riistoeiiiiiral iiiiier shell, a rotatable Sleeve vulve seated lietii'een having spiral. oil grooves extending over the ineased portion of 'the valve to its aiiiiiilar uppermoet portieri exteriorlj,T and iiiteiiorly, and au oii eliaiiiiel formed by the walls ot the valve caaiiig positioned over the apes of the i'zi'lve with which tlie Spiral oil groei/'i` connect, means for supplying oil 'to tlie Spiral oil grooves at. the base of the valve, and a Water jacketeiieireliiig the valve eai3- ing1 adjacent to liotli its outer and iiiiier shell, positioned substantially as illustrated and described, whereby lubrication is iiiiproved.

The eoiiibiiiatioin of a ported, rotating sleeve Valve having .,iiiialr oil grooves ere tending tioiii eiid to eiid.l oil orifices periplieialljf disiioffied iii tlie Valve, a liollow Sleeve- Sliaiieil miie easing rotatably supporting and enveloping tlie valve except at its base, a. surrounding; water ticket foi'iiiiiig a oomiilete 'envelop 'for tlie valve easing, a spring iiiig; located iii the oiitei' vall ot' that pow tion of the water jacket adjacent to the cylinder ii'oiiieideiitly with the aforesaid oil oiliee' ali aiiiiiilar oil eliaiiiiel. at the eiid of the i'z'iii'fe iiito which the spiral oil grooves :iiiil wl Qiilaaliiiig mechanism. if. lo. :iii iiiei'iiail (.'oiiiliiistioii ei'igioe, the combination o'aii eppositelyv ported cylin- ,-ei" a pieton therein, a eraiili shaftoperaii'elj.' i'i'iiioiwfted with the piston, a coiieeipositioned doiililewalled sleeve Voire casiiiff lriisto-eoiiieal iii its upper portioii.y a i'e table sleeve Valve riiato-eoiiieal .iii its iiiigiei' Doi-tion liaiiiig eoii'iplete spiral oil i'i'ooi'iiiiij disposed over its exterior and iiitei' ii' `wiiri'area lroiii liaise to its annular l iioitioii opposite inlet and eX- o 'igea eoiiieideiitlji* disposed with iiider i) a. water jacket ericireling Ari mire raemgg adjacent to liotli its outer and iiiiiei shells, means for splashing' oil to tl e baoe oi tlie spirally grooi'ed valve, eylimiter ai'iil gearing, located and operatively connected Siilietantially as and ii'oi the purpofies lortli iii this specification.

iii testimony whereof i aiiix iiiysignatiire iii presence ot tivo iifitiiesfies.

C HAR-LES l?. LlillBlwl. 

